ARM: dts: import initial DT for BPI-CM4 module with BPI-CM4IO baseboard

Import initial support for BPI-CM4 module with BPI-CM4IO baseboard
from the Linux submission applied at [1].

The BananaPi BPI-CM4 module follows the CM4 specifications at [2],
but with a single HDMI port and a single DSI output.

The current CM4IO baseboard DT should work fine on the Raspberry CM4
baseboard and other derivatives baseboards, but proper DT should
be written for other baseboards.

[1] https://git.kernel.org/amlogic/c/0262f2736978b1763363224698f47112a148dab0
[2] https://datasheets.raspberrypi.com/cm4io/cm4io-datasheet.pdf

Link: https://lore.kernel.org/r/20230307-u-boot-cm4-v1-1-43f5a393cd37@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 337bee7e1ec6bf0ce5bb0018f09dd307b76ac9a2..faf3dc45ac285f35abe7b43d48c6629471a3f665 100644 (file)
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -212,6 +212,7 @@ dtb-$(CONFIG_ARCH_MESON) += \
        meson-g12b-odroid-n2.dtb \
        meson-g12b-odroid-n2l.dtb \
        meson-g12b-odroid-n2-plus.dtb \
+       meson-g12b-bananapi-cm4-cm4io.dtb \
        meson-sm1-bananapi-m5.dtb \
        meson-sm1-khadas-vim3l.dtb \
        meson-sm1-odroid-c4.dtb \

diff --git a/arch/arm/dts/meson-g12b-bananapi-cm4-cm4io.dts b/arch/arm/dts/meson-g12b-bananapi-cm4-cm4io.dts
new file mode 100644 (file)
index 0000000..1b0c388
--- /dev/null
+++ b/arch/arm/dts/meson-g12b-bananapi-cm4-cm4io.dts
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Neil Armstrong <neil.armstrong@linaro.org>
+ */
+
+/dts-v1/;
+
+#include "meson-g12b-bananapi-cm4.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
+
+/ {
+       compatible = "bananapi,bpi-cm4io", "bananapi,bpi-cm4", "amlogic,a311d", "amlogic,g12b";
+       model = "BananaPi BPI-CM4IO Baseboard with BPI-CM4 Module";
+
+       aliases {
+               ethernet0 = &ethmac;
+               i2c0 = &i2c1;
+               i2c1 = &i2c3;
+       };
+
+       adc-keys {
+               compatible = "adc-keys";
+               io-channels = <&saradc 2>;
+               io-channel-names = "buttons";
+               keyup-threshold-microvolt = <1710000>;
+
+               button-function {
+                       label = "Function";
+                       linux,code = <KEY_FN>;
+                       press-threshold-microvolt = <10000>;
+               };
+       };
+
+       hdmi_connector: hdmi-connector {
+               compatible = "hdmi-connector";
+               type = "a";
+
+               port {
+                       hdmi_connector_in: endpoint {
+                               remote-endpoint = <&hdmi_tx_tmds_out>;
+                       };
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led-blue {
+                       color = <LED_COLOR_ID_BLUE>;
+                       function = LED_FUNCTION_STATUS;
+                       gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
+               };
+
+               led-green {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_STATUS;
+                       gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>;
+               };
+       };
+
+       sound {
+               compatible = "amlogic,axg-sound-card";
+               model = "BPI-CM4IO";
+               audio-aux-devs = <&tdmout_b>;
+               audio-routing = "TDMOUT_B IN 0", "FRDDR_A OUT 1",
+                               "TDMOUT_B IN 1", "FRDDR_B OUT 1",
+                               "TDMOUT_B IN 2", "FRDDR_C OUT 1",
+                               "TDM_B Playback", "TDMOUT_B OUT";
+
+               assigned-clocks = <&clkc CLKID_MPLL2>,
+                                 <&clkc CLKID_MPLL0>,
+                                 <&clkc CLKID_MPLL1>;
+               assigned-clock-parents = <0>, <0>, <0>;
+               assigned-clock-rates = <294912000>,
+                                      <270950400>,
+                                      <393216000>;
+
+               dai-link-0 {
+                       sound-dai = <&frddr_a>;
+               };
+
+               dai-link-1 {
+                       sound-dai = <&frddr_b>;
+               };
+
+               dai-link-2 {
+                       sound-dai = <&frddr_c>;
+               };
+
+               /* 8ch hdmi interface */
+               dai-link-3 {
+                       sound-dai = <&tdmif_b>;
+                       dai-format = "i2s";
+                       dai-tdm-slot-tx-mask-0 = <1 1>;
+                       dai-tdm-slot-tx-mask-1 = <1 1>;
+                       dai-tdm-slot-tx-mask-2 = <1 1>;
+                       dai-tdm-slot-tx-mask-3 = <1 1>;
+                       mclk-fs = <256>;
+
+                       codec {
+                               sound-dai = <&tohdmitx TOHDMITX_I2S_IN_B>;
+                       };
+               };
+
+               /* hdmi glue */
+               dai-link-4 {
+                       sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>;
+
+                       codec {
+                               sound-dai = <&hdmi_tx>;
+                       };
+               };
+       };
+};
+
+&cecb_AO {
+       status = "okay";
+};
+
+&ethmac {
+       status = "okay";
+};
+
+&hdmi_tx {
+       status = "okay";
+};
+
+&hdmi_tx_tmds_port {
+       hdmi_tx_tmds_out: endpoint {
+               remote-endpoint = <&hdmi_connector_in>;
+       };
+};
+
+/* CSI port */
+&i2c1 {
+       status = "okay";
+};
+
+/* DSI port for touchscreen */
+&i2c3 {
+       status = "okay";
+};
+
+/* miniPCIe port with USB + SIM slot */
+&pcie {
+       status = "okay";
+};
+
+&sd_emmc_b {
+       status = "okay";
+};
+
+&tohdmitx {
+       status = "okay";
+};
+
+/* Peripheral Only USB-C port */
+&usb {
+       dr_mode = "peripheral";
+
+       status = "okay";
+};

diff --git a/arch/arm/dts/meson-g12b-bananapi-cm4.dtsi b/arch/arm/dts/meson-g12b-bananapi-cm4.dtsi
new file mode 100644 (file)
index 0000000..97e5229
--- /dev/null
+++ b/arch/arm/dts/meson-g12b-bananapi-cm4.dtsi
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Neil Armstrong <neil.armstrong@linaro.org>
+ */
+
+#include "meson-g12b-a311d.dtsi"
+#include <dt-bindings/gpio/meson-g12a-gpio.h>
+
+/ {
+       aliases {
+               serial0 = &uart_AO;
+               rtc1 = &vrtc;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       emmc_pwrseq: emmc-pwrseq {
+               compatible = "mmc-pwrseq-emmc";
+               reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x0 0x0 0x40000000>;
+       };
+
+       sdio_pwrseq: sdio-pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&gpio GPIOAO_6 GPIO_ACTIVE_LOW>;
+               clocks = <&wifi32k>;
+               clock-names = "ext_clock";
+       };
+
+       emmc_1v8: regulator-emmc-1v8 {
+               compatible = "regulator-fixed";
+               regulator-name = "EMMC_1V8";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               vin-supply = <&vddao_3v3>;
+               regulator-always-on;
+       };
+
+       dc_in: regulator-dc-in {
+               compatible = "regulator-fixed";
+               regulator-name = "DC_IN";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+       };
+
+       vddio_c: regulator-vddio-c {
+               compatible = "regulator-gpio";
+               regulator-name = "VDDIO_C";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+
+               enable-gpio = <&gpio_ao GPIOAO_3 GPIO_OPEN_DRAIN>;
+               enable-active-high;
+               regulator-always-on;
+
+               gpios = <&gpio_ao GPIOAO_9 GPIO_OPEN_DRAIN>;
+               gpios-states = <1>;
+
+               states = <1800000 0>,
+                        <3300000 1>;
+       };
+
+       vddao_1v8: regulator-vddao-1v8 {
+               compatible = "regulator-fixed";
+               regulator-name = "VDDAO_1V8";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               vin-supply = <&vddao_3v3>;
+               regulator-always-on;
+       };
+
+       vddao_3v3: regulator-vddao-3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "VDDAO_3V3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&dc_in>;
+               regulator-always-on;
+       };
+
+       vddcpu_a: regulator-vddcpu-a {
+               /*
+                * MP8756GD DC/DC Regulator.
+                */
+               compatible = "pwm-regulator";
+
+               regulator-name = "VDDCPU_A";
+               regulator-min-microvolt = <680000>;
+               regulator-max-microvolt = <1040000>;
+
+               pwm-supply = <&dc_in>;
+
+               pwms = <&pwm_ab 0 1250 0>;
+               pwm-dutycycle-range = <100 0>;
+
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
+       vddcpu_b: regulator-vddcpu-b {
+               /*
+                * SY8120B1ABC DC/DC Regulator.
+                */
+               compatible = "pwm-regulator";
+
+               regulator-name = "VDDCPU_B";
+               regulator-min-microvolt = <680000>;
+               regulator-max-microvolt = <1040000>;
+
+               pwm-supply = <&dc_in>;
+
+               pwms = <&pwm_AO_cd 1 1250 0>;
+               pwm-dutycycle-range = <100 0>;
+
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
+       wifi32k: wifi32k {
+               compatible = "pwm-clock";
+               #clock-cells = <0>;
+               clock-frequency = <32768>;
+               pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+       };
+};
+
+&arb {
+       status = "okay";
+};
+
+&clkc_audio {
+       status = "okay";
+};
+
+&cec_AO {
+       pinctrl-0 = <&cec_ao_a_h_pins>;
+       pinctrl-names = "default";
+       hdmi-phandle = <&hdmi_tx>;
+};
+
+&cecb_AO {
+       pinctrl-0 = <&cec_ao_b_h_pins>;
+       pinctrl-names = "default";
+       hdmi-phandle = <&hdmi_tx>;
+};
+
+&cpu0 {
+       cpu-supply = <&vddcpu_b>;
+       operating-points-v2 = <&cpu_opp_table_0>;
+       clocks = <&clkc CLKID_CPU_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu1 {
+       cpu-supply = <&vddcpu_b>;
+       operating-points-v2 = <&cpu_opp_table_0>;
+       clocks = <&clkc CLKID_CPU_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu100 {
+       cpu-supply = <&vddcpu_a>;
+       operating-points-v2 = <&cpub_opp_table_1>;
+       clocks = <&clkc CLKID_CPUB_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu101 {
+       cpu-supply = <&vddcpu_a>;
+       operating-points-v2 = <&cpub_opp_table_1>;
+       clocks = <&clkc CLKID_CPUB_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu102 {
+       cpu-supply = <&vddcpu_a>;
+       operating-points-v2 = <&cpub_opp_table_1>;
+       clocks = <&clkc CLKID_CPUB_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu103 {
+       cpu-supply = <&vddcpu_a>;
+       operating-points-v2 = <&cpub_opp_table_1>;
+       clocks = <&clkc CLKID_CPUB_CLK>;
+       clock-latency = <50000>;
+};
+
+&ext_mdio {
+       external_phy: ethernet-phy@0 {
+               /* Realtek RTL8211F (0x001cc916) */
+               reg = <0>;
+               max-speed = <1000>;
+
+               interrupt-parent = <&gpio_intc>;
+               /* MAC_INTR on GPIOZ_14 */
+               interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
+       };
+};
+
+/* Ethernet to be enabled in baseboard DT */
+&ethmac {
+       pinctrl-0 = <&eth_pins>, <&eth_rgmii_pins>;
+       pinctrl-names = "default";
+       phy-mode = "rgmii-txid";
+       phy-handle = <&external_phy>;
+};
+
+&frddr_a {
+       status = "okay";
+};
+
+&frddr_b {
+       status = "okay";
+};
+
+&frddr_c {
+       status = "okay";
+};
+
+/* HDMI to be enabled in baseboard DT */
+&hdmi_tx {
+       pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>;
+       pinctrl-names = "default";
+       hdmi-supply = <&dc_in>;
+};
+
+/* "Camera" I2C bus */
+&i2c1 {
+       pinctrl-0 = <&i2c1_sda_h6_pins>, <&i2c1_sck_h7_pins>;
+       pinctrl-names = "default";
+};
+
+/* Main I2C bus */
+&i2c2 {
+       pinctrl-0 = <&i2c2_sda_x_pins>, <&i2c2_sck_x_pins>;
+       pinctrl-names = "default";
+};
+
+/* "ID" I2C bus */
+&i2c3 {
+       pinctrl-0 = <&i2c3_sda_a_pins>, <&i2c3_sck_a_pins>;
+       pinctrl-names = "default";
+};
+
+&pcie {
+       reset-gpios = <&gpio GPIOA_8 GPIO_ACTIVE_LOW>;
+};
+
+&pwm_ab {
+       pinctrl-0 = <&pwm_a_e_pins>;
+       pinctrl-names = "default";
+       clocks = <&xtal>;
+       clock-names = "clkin0";
+
+       status = "okay";
+};
+
+&pwm_ef {
+       pinctrl-0 = <&pwm_e_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+};
+
+&pwm_AO_cd {
+       pinctrl-0 = <&pwm_ao_d_e_pins>;
+       pinctrl-names = "default";
+       clocks = <&xtal>;
+       clock-names = "clkin1";
+
+       status = "okay";
+};
+
+&saradc {
+       vref-supply = <&vddao_1v8>;
+
+       status = "okay";
+};
+
+/* on-module SDIO WiFi */
+&sd_emmc_a {
+       pinctrl-0 = <&sdio_pins>;
+       pinctrl-1 = <&sdio_clk_gate_pins>;
+       pinctrl-names = "default", "clk-gate";
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       bus-width = <4>;
+       sd-uhs-sdr104;
+       max-frequency = <50000000>;
+
+       non-removable;
+       disable-wp;
+
+       /* WiFi firmware requires power in suspend */
+       keep-power-in-suspend;
+
+       mmc-pwrseq = <&sdio_pwrseq>;
+
+       vmmc-supply = <&vddao_3v3>;
+       vqmmc-supply = <&vddao_3v3>;
+
+       status = "okay";
+
+       rtl8822cs: wifi@1 {
+               reg = <1>;
+       };
+};
+
+/* SD card to be enabled in baseboard DT */
+&sd_emmc_b {
+       pinctrl-0 = <&sdcard_c_pins>;
+       pinctrl-1 = <&sdcard_clk_gate_c_pins>;
+       pinctrl-names = "default", "clk-gate";
+
+       bus-width = <4>;
+       cap-sd-highspeed;
+       max-frequency = <50000000>;
+       disable-wp;
+
+       cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
+       vmmc-supply = <&vddao_3v3>;
+       vqmmc-supply = <&vddio_c>;
+};
+
+/* on-module eMMC */
+&sd_emmc_c {
+       pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_8b_pins>, <&emmc_ds_pins>;
+       pinctrl-1 = <&emmc_clk_gate_pins>;
+       pinctrl-names = "default", "clk-gate";
+
+       bus-width = <8>;
+       cap-mmc-highspeed;
+       mmc-ddr-1_8v;
+       mmc-hs200-1_8v;
+       max-frequency = <200000000>;
+       disable-wp;
+
+       mmc-pwrseq = <&emmc_pwrseq>;
+       vmmc-supply = <&vddao_3v3>;
+       vqmmc-supply = <&vddao_1v8>;
+
+       status = "okay";
+};
+
+&tdmif_b {
+       status = "okay";
+};
+
+&tdmout_b {
+       status = "okay";
+};
+
+/* on-module UART BT */
+&uart_A {
+       pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+       pinctrl-names = "default";
+       uart-has-rtscts;
+
+       status = "okay";
+
+       bluetooth {
+               compatible = "realtek,rtl8822cs-bt";
+               enable-gpios  = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
+               host-wake-gpios = <&gpio GPIOX_19 GPIO_ACTIVE_HIGH>;
+               device-wake-gpios = <&gpio GPIOX_18 GPIO_ACTIVE_HIGH>;
+       };
+};
+
+&uart_AO {
+       pinctrl-0 = <&uart_ao_a_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+};
+
+&usb {
+       phys = <&usb2_phy0>, <&usb2_phy1>;
+       phy-names = "usb2-phy0", "usb2-phy1";
+};